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A 1212-foot roll of aluminum foil costs $7.20\$7.20. What is the price per inch?

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Full solution

Q. A 1212-foot roll of aluminum foil costs $7.20\$7.20. What is the price per inch?
  1. Identify inches in 11 foot: Identify the number of inches in 11 foot.\newline11 foot = 1212 inches
  2. Calculate total length: Calculate the total length of the roll in inches.\newlineTotal length of roll: 1212 feet\newlineConvert 1212 feet to inches.\newline11 foot = 1212 inches\newline1212 feet = 12×1212 \times 12 inches = 144144 inches
  3. Calculate price per inch: Calculate the price per inch.\newlineCost of roll: $7.20\$7.20\newlineTotal length of roll: 144144 inches\newlinePrice per inch = $7.20/144\$7.20 / 144 inches
  4. Perform division: Perform the division to find the price per inch. Price per inch = $7.20/144=$0.05\$7.20 / 144 = \$0.05

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